James old



' J. OLD.

Grate.

Patented Nov. 2, 1869."

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Letters Patent No. 96,342, dated November 2, 1869.

FIRE-PLACE GRA'I'B.

the Schedule referred to in these Letters Patent and making part dfthe name To all whom it may concern Be it known that I, JAMES OLD, of Pittsburg, in

the county of Allegheny, and State of Pennsylvania,

have invented a new and useful Improvement in Grates; and I do herebydeclare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, making a part of this Specification, in which-- Figure 1 is a rear or inside perspective view of a fire-place grate, with my improvement attached;

Figure 2 is a sectional view, in perspective, of one of the connections;

Figure 3 is a sectional view of a fire-place and grate, with my improvement attached thereto; and

Figure 4 is aside view of the link-piece.

Like letters of reference indicate like parts in each.

In Letters Patent, issued to me 16th March, 1869, for an improvement in grates, a tilting-bar is shown as extendingalong between the rear of the grate and the back tile of the fire-place, with devices for operating it, the object of itheing to stir or break up the mass of coal which is apt to settle in the back part of the fire-space, and supply it with air, so as to promote its combustion.

The object of my present invention is to provide means for attaching, easily and effectively, such a tilting-bar tothe ordinary form of grate, so as to apply it to grates already se-t,"as well as to grates when being set, but which have not been fitted, in casting, with the appliances shown and described in the patent above referred to. u

The nature of my invention consists in attaching the tilting-bar, and the devices for operating it, tothe grate 0r fire-basket, by means of 'one'or more linkpieces, each of which has an eye .at one end, for the bearin gs of the tilting-lever, andan'eye or hook at the other end, and'below the grate-bars, for the insertion of a key, or other equivalent device inlieu thereof.

To enable others skilled intbe art to make and use my invention, I will proceed to describe its construction and mode of operation.

The grate or fire-basket a a. a" is made of my approved form, and, when in use, is set in a fire-place, (as seen in fig. 3,) b representii'ig the'ash-pit, b, the lire-space, (I, the rear wall, 0, the back tile of the firespace, and c, the dust-flue.

Between the rear bottom-bar a and the back tile 0, I arrange a tilting-bar, e, which, by a shifting-lever, e, attached thereto, is raised and lowered to and from the positions shown in fig. 3.'

The uses of this bar, and also of the stirring-plates e, which operate up and down between the bar a, are set forth in the patent already issued to me.

In order to be able to attach these devices to -the grates in ordinary use, and when in use, I provide one or more of the stirring-plates c c", with journal or bearing-pins s, each of which restson the adjacent bar a, and projects beyond it far enough to enter an eye in the upper end of the link-piece m.

One of these link-pieces m is inserted on each of the bearings s, and extends downbetween and far enough belowthe bars-a for the insertion of 'a key, 8', in an eye in its lower end, or in a hook, as, as shown, the

' shape of' the two being such, that -the key s, with a wedge-like action, will bear firmly on the hook, and hold't-he devices firmly in place.

Instead of the hook a: and key 8', any mechanical equivalent thereof may be used, such as a screw -bolt and nut, or a pin with a button attached.

Tll6 link-piece m, also, may be made of T-shape, as shown in fig. 4; and the projecting ends of the T-head,

on either side, may rest on the bars a, in which case,

the pins 8 need only be made long enough to enter them, and give a secure bearing therein;

An ordinary grate can then be furnished with the appliances described, and all the usefulness of the tilting-bar and stirring-plate be secured therewith.

Another feature of my invention consists in pivoting' the bearing-pins s above the grate-bars (1, instead ot' below, as in my former patent, the effect of which is, that the tilting-bar 0 will be caused .to act on the fuel in the rear part of the fire-basket more nearly in a vertical direction, and, when it is raised, an increased amount of air-space will be secured, as at n a.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The link-piece m, keyed, or fastened in other equivalent manner, to the bars a, and c'arryin'g,by bearings s, a tilting-bar, c, the parts named being combined substantially in the manner set forth.

2. The arrangement of the link-pieces m, with the grate-bars a, so as to effect the pivoting of the bearings s above the grate-bars, instead of below.

In testimony whereof, I, the said JAMES OLD, have hereunto set my hand.

' JAMES OLD.

Witnesses A. S. N IcHoLsON, R. O. WRENSHALL. 

